Traditional Culture Encyclopedia - Traditional customs - Why does the opening of the can turn inward?
Why does the opening of the can turn inward?
The opening of the tank rotates inward for the following reasons:
1, the design made by cans manufacturers in response to the original intention of global environmental protection, the previous pull ring is discarded after it is opened, which is easy to cause excess garbage.
2. After this design is opened, the pull ring is still on the jar, and it is also taken when recycling.
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